Elastic tire for vehicles.



LS. MUGIEHAN.

ELASTIG TIRE FOR VEHICLES.

APPLIUATION HLBD JAN. e, 190s.

.miki

Patented May 31, 1910.-

narran serrures PATENT caricia Isaac sEAMnNf MCGIEHAN, oF WEST'MINSTER, LoNDoN, ,ENGLAND. l

ELASTIC TIRE Application filed January 6J 1908. Seria1`No. 409,379?

To all whom it may concern:

Be it known that I, IsAAo SEAMAN Mo- GIEHAN, a citizen of the United States of America, residing at 28 Victoria street, ttlestminster, London, England, have invented new and usefullmprovements in or Relating to Elastic Tires forl Vehicles, of which the following is a specification.

rlfhis invention relates to pneumatic tires or covers for pneumatic tires, and its object is to produce a tire or cover composed of layers of fabric impregnated With a binder of vulcanized rubber, cement or the like, so as, to'form an inseparable mass, the tread portion being so formed as to take the load without material deflection, while the sides or 'walls of the foundation portion receive and absorb the shock. The fabric layers 4are so arranged as to give additionall strength to the rubber and reinforce it in all directions, and prevent the tire from breaking, 'blistering or becoming granulated, while the Vrubber unites and bindsthe fabric in all directions and converts the layers into a substantially7 homogeneousmass wherein the load is equally distributed; a

My invention is illustrated in the accompanying drawings, which form part of this specification in which similar characters represent corresponding parts.

In said drawings-Figure 1 is a transverse sectional view of the preferred form of tire. Figs. 2 and?) are similar Views of slight modifications of the tire. i

The@ tire or' cover comprises an inner foundation portion 1 composed of layers'of fabric united as hereinafter described; and having on its side edges integral ribs 1? for engagement with the tire retainers on the wheel felly (not shown). The layers of fabric in the portion 1 are arranged transl versely of the tire, when viewed in cross section, as shown in the drawings. In 'ad-l dition, the tire furthery comprises `a tread portion 2, composed of'annular layers .ort rings of fabric set edgewise to the foundation portion 1, and united as hereinafter described, and this tread portion is in practice preferably formed separately from the foundation portion and thereafter inseparably connected therewith as hereinafter exg plained. The layers of fabric in the tread portion are arranged vertically edgevvise, and perpendicular to the layers of fabric in the foundation portion, and longitudinally of the tire-viewed in cross section. The

` mode of makingsame. 4

In constructing the tire I take first, aj very line closely woven mesh fabric to formfoundation portion as hereinafter. explained.

ing detailed explanation the inner 1ayer... 1 which ycomesv nextjthe rubber sticking thereto. yI then place on .this layer s, ylayers* c vof ver heavy open fabric are filled With1rubber,but not surportion 1 of the tire, as illustrated.

The tread portion lof such foundation 1 'is vers of fabric may be applied to extend the flatregular upper or outer surface thereof uponwhich the verticalfabric tread portion 2- fits.

treatedand impregnated with rubber, so that dare cut on the bias, and'of a'width corresponding to the desired depth or thickness of the tread. lThe strips cl are then laid or wound one upon another within a forming die (not shown) and subjected to hydraulic [pressure until-the. desired thickness df vhead 'to f) Fig. 1, is obtained, and then the nular tread so formed is then stretched over and ontol the tread portion a of the foundaand 2, thus making a perfect joint between the vertlcallayers d and transverse layers o of fabric, Which layers aresubsequently all the sidesof portions 1 and 2 over the bindfui-e in addition u) the -foregsing "further i com rises yside binders of' fabricwhich assistl in'4 rmly uniting the tread portion to theyfaced with rubber; the layers c are placed I one upon another to form the foundation -preferably made fiat, as at n in Fig. 1, andl at the. edges of the Vtread portion small llz rThe tread portion 2 isconstructed of a number of layers al ofveryopen mesh fabric tread is preferably ,semivulc'anized. The an' tion portion ofthe tire as shown in Figs. .1f

able covering e, are placed inposition against vkspecification'of tettyersratent.. Patented May-3151910; i

'so The structure'of the ltire andit's essentials Willbe fully comprehended froml the follow? g *of the lpreferred mandrel or core `ofthe. 1n'ol^d, to prevent the`v mesh fabric previously treate and impreg' l nated with rubber, so lthat the meshes of the i the ljneshesare filled, butpreferably the survfaces are not coated. Preferably the layers inseparably united when vulcanized. Then,

Los

i Within the binders m as shown.

. ing strips m and then the Whole, while mounted on. thel core, is' placed ina properf i ,mold and vulcanized.

- As indiated in Fig. 21th@ Yfunda'tidn' portion llisl not flattened vunder the tread portion 2, and the segmental spaces` between-.-

' the inner side ofthev` tread portion and the l outer face offthelfoundation portion are flledby suitable' material la which may be fabric or rubber; these llers being inclo/sed As indicated inl Figs. 2 and 3 the' Wear por,-

tions may be transxed by rods it to further bond vthe layers of the tread portion together.

s indicated in Fig; 3 the tread portion 2' isl concavedy on its inner face so as vto fit closely against the rounded face of the foun-v dation portion 1, the outer layers d of the tread portion,- beingl made Wider.than the inner layers, so that thefllersk and ginaybe dispensed With. The layers of fabric in the foundation and' the tread portion being ofopenmesh and thoroughly impregnated with rubber, prefer'v l lvertical fabric layers el Will become insepa.

rably .unitedwitfh the layers of the founda` tion portion when the parts are yulcanized;

' y and theme as, awhoie when finished is a substantially homogeneous and inseparable mass of; rubber and fabric working in unison to 'receiveand distribute the strain'and di# vert it from the. tread portion tothe Walls of the foundation portion. I, thus obtain a yielding jor Imovingtread With little'or .no ydistinr'ztrtfe transverse deflection therein at the point Where it-contacts with the road.

The tire orcover thus formed acts in uni:

lson andyields as a whole, no ,individual part being separable from the other, and is able' to withstand terrific shocks or strains Without ini-urn??? Y Having describedv my finvention what I Patent vtlierecui is:

A tire comprising a :foundation portion formed of layers of fabric impregnated with .claim asfnew and desire` to, secure 'by Letters ,rubber lying transversely of the tread I'portion, and a tread portion composed of annular layers of fabric impregnated With rubber standing perpendicular to the layers ofthe 4 foundation portion, and -side binders of fabric impregnated with rubber, said lfoundation portion, side binders, and tread por- 'tions and the layers offabric and rubber therein being permanently united by vulcan'- ization.

l In testimony whereof I have signed myl name to this specification in the presence of two subscribing Witnesses.

ISAAC SEAMANV VMiernennt Witnesses HENRY CONRAD HEIDE I-I. D. JAMESON. 

